drm/nouveau: quiet some static-related sparse noise

Signed-off-by: Marcin Slusarz <marcin.slusarz@gmail.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

drivers/gpu/drm/nouveau/nouveau_vga.c

@@ -7,6 +7,7 @@
 #include "nouveau_drm.h"
 #include "nouveau_acpi.h"
 #include "nouveau_fbcon.h"
+#include "nouveau_vga.h"
 
 static unsigned int
 nouveau_vga_set_decode(void *priv, bool state)